• Fixed bug where 'All tests successful' would not be printed if bonus
  tests are seen.
  
• Fixed bug where 'Result: FAIL' would be printed at the end of a test
  run if there were unexpectedly succeeding tests.
  
• Added -M, -P switches to allow arbitrary modules to be loaded
  by prove. We haven't yet defined what they'll do once they
  load but it's a start...
  
• Added testing under simulated non-forking platforms.